About This Document
This document provides detailed service information for the Johnson Viking 352 and 352 D Citizens Radio Transceivers. It covers essential aspects including technical specifications, installation guidelines, in-depth circuit descriptions, alignment procedures, and comprehensive parts lists for both models.
Key Features and Specifications
The Johnson Viking 352/352 D series offers 23 channels within the 26.965 to 27.255 MHz frequency range. These transceivers utilize advanced circuitry for reliable communication, including a frequency synthesizer for precise channel selection. Key specifications include:
- 23 Channels
- Frequency Range: 26.965 to 27.255 MHz
- Frequency Control: Crystal controlled with synthesizer
- Power Requirements: 13.8 VDC
- Modes: AM, LSB, USB
Installation and Operation
Guidance is provided for the proper installation of the transceiver in a vehicle, ensuring optimal performance and safety. The document details the connection of antennas, power sources, and optional accessories like external speakers.
Technical Details
Explore the internal workings of the Viking 352/352 D with detailed circuit descriptions covering the RF amplifier, mixer, IF amplifier, detectors, transmitter stages, and the digital synthesizer. Understanding these circuits is crucial for effective troubleshooting and maintenance.
Maintenance and Alignment
This manual includes step-by-step instructions for aligning various sections of the transceiver, including the carrier oscillator, frequency synthesizer, receiver, and transmitter. Proper alignment ensures the device operates within its specified performance parameters.
Parts and Schematics
Comprehensive parts lists are provided for both the Viking 352 and 352 D models, identifying each component by its symbol number and part number. Accompanying schematic diagrams illustrate the electronic circuitry, aiding in component identification and repair.
For more information on Johnson radio equipment, visit resources like RigPix Database.
